/Engine/Source/Runtime/Engine/Classes/Engine/ActorChannel.h
Finds (or creates) the net field export group for a class net cache, if not found, creates one
[FNetFieldExportGroup](API\Runtime\Engine\Engine\FNetFieldExportGroup) * GetOrCreateNetFieldExportGroupForClassNetCache ( const [UObject](API\Runtime\CoreUObject\UObject\UObject) * Object )